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⚠ This part has been superseded by a newer OEM part number.
MDS65210402 has been replaced by MDS65210409. We recommend ordering the current part for guaranteed fit and full lifespan.
Order MDS65210409 Instead →Dishwasher Leaking from the Door or Puddles on the Floor After Every Cycle? The Door Gasket Is the Cause.
When the door seal gasket on your LG dishwasher cracks, tears, or pulls away from its channel, the watertight seal is broken — allowing water to escape under the door during every wash cycle. Part MDS65210402 is the genuine OEM door seal gasket for select LG LDB, LDF, LDP, and LDT series dishwashers. Note: this part has been superseded by MDS65210409 — we recommend ordering the current part number above for guaranteed fit and full service life.
Is This the Part You Need?
This is the correct gasket if water is leaking from the bottom or sides of your dishwasher door during or after a cycle, or if you can see visible cracks, tears, or sections of the gasket pulling away from the door channel. Confirm your model number below before ordering.
⚠️ Symptoms of a Failed Door Seal Gasket
- Water leaking from the bottom or sides of the dishwasher door during a cycle
- Puddles forming on the floor during or after the wash cycle
- Visible cracks, tears, or brittleness in the door seal
- Gasket pulling away from the door channel in one or more sections
- Musty or mildew odour from moisture escaping the tub
- Dishes not getting clean — steam and water pressure escaping instead of circulating
✓ Part Details
- OEM Part Number: MDS65210402
- Superseded By: MDS65210409
- Brand: LG
- Appliance Type: Dishwasher
- Part Type: Door Seal Gasket (tub door gasket)
- Condition: New Genuine OEM
⚙️ Installation Notes
Skill Level: Beginner — no tools required for most models.
⚠️ Always disconnect power to the dishwasher before servicing.
Open the door fully to access the gasket channel around the tub opening. Starting at a corner, pull the old gasket out of the channel. Clean the channel thoroughly to remove any residue or debris before installing the new gasket. Press the new gasket firmly into the channel working from the top centre outward to the corners, ensuring it seats fully with no gaps. Run a short cycle to verify the seal before returning to normal use.
✓ Compatible Models
Fits select LG dishwashers including: LDB4548ST, LDF5545BB, LDF5545BD, LDF5545SS, LDF5545ST, LDF5678SS, LDF5678ST, LDP6797BB, LDP6797BD, LDP6797SS, LDP6797ST, LDP6797WW, LDT5665ST, LDT5678BD, LDT5678SS, LDT5678ST, LDT7797ST
Contact XPart Supply for model compatibility confirmation →
💡 Pro Tip — Clean the Gasket Channel Before Installing:
A new gasket installed into a dirty or residue-coated channel won’t seat properly and will leak again within weeks. Before pressing in the new gasket, wipe the entire channel with a damp cloth and a mild detergent to remove soap scum, mineral deposits, and old gasket debris. A clean channel ensures the gasket seats flush and forms a complete seal from the first cycle.
A new gasket installed into a dirty or residue-coated channel won’t seat properly and will leak again within weeks. Before pressing in the new gasket, wipe the entire channel with a damp cloth and a mild detergent to remove soap scum, mineral deposits, and old gasket debris. A clean channel ensures the gasket seats flush and forms a complete seal from the first cycle.
✓ Model-Specific Repair Pages
✅Compatibility & Cross Reference
Not sure about your model number? Call 1-877-899-7278 and we’ll help you confirm. All brand names are the property of their respective owners and are used for compatibility reference only.
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